Improvement in steam-generators



diittrtl tstr page ewa.

EDWARD BOUNNE, or Prr'rsnunc. PENNSYLVANIA.

Letters Paten/t N o. 97,864, dated December 14, 1869.

IMPROVEMENT IN' STEAM-GENERATORS.

The Schedule referred t in these LettersPatent andamaking-part of the came.

thereof, reference being had to the Aaccompanying ldrawings, forming part of this specification, and to the letters of reference marked thereon.

The nature ot' my invention consists in the-construction, ashereinafterdescribed, of h boiler, ot' distinct metallic globular or other-shaped hollow parts or chambers, united in groups or clustersby screwing the neck of one into the bottoln of the other,

and providing each spherical chamber with an inlet and outlet-pipe, of ditt'erent lengt-hs, leading into the one immediately connected to it, or into a steam or l 'water-reservoir, by which a natural, continuous, and

. is maintain/ed at all times during the operation of genperfect circulation of water in said several chambers crating steam.

l To enable others to understand, make, and use my improved steam-generator, `I will proceed to describe its construction `and operation b vreference to the f annexed drawings, in which-` Figure 1 represents a front elevation of my appa- Vratns, partly in perspective and partly in section.

Figure 2 represents a transverse' vertical section of a cluster of spherically-shaped chambers attached to and hangingin a vertical line beneath a steamreceivcr. l e

Figure 3 represents a section'ot" the generator on a horizontal plane, through the necks ot-the` spherical chambers.

Figure 4, vertical sectionof the safety-valve.

All the drawings are lettered, and tsilnilarv letters `denote like parts inthe several views.

To construct my apparatus, I make a number of metallic bottle-shaped char'nbers,` B, each provided with a short neck, a, and with a hole in its bottom,

corresponding in size with `that neck.

Through the necks a' ot'` these chambers are two vert-ical openings, ,one` consisting of a short tube, T, just long enough to reach and communicate with the interior, the other, S, `heilig a much longer tube, and,y

extending into the chamber, and within one inch of its bottom. l

On the necks a of these several chambers B, a

screw is cnt, by which they may be, united the one to the other, in clusters, by screwing the neck of one chamber into the hole in the bottom of the other ,next above it.

When several -of thcsc chambers have been thus i united, they are then attached to a steam-receiver,

-np a circulation, the pipe is ma A, by screwing the neck a of the upper Vchamber l thereinto, as represented in the drawings.

There the boiler is intended for the generation of large quantities of' steam, two or more of these clusters may be attached to one receiver, by direct connection therewith, or by attaching them to vertical or horizontal tiues or pipes extending therefrom, wherewith boilers of different forms and dimensions `may be built up, as the nature of the case may require.

The vsteam-receiver A, represented as being above ythe spherical chambers B, is provided with a steam` conduit pipe, "It, of ordinary construction, and within asafety-valvc, L.

This boiler is provided with y.an outside casing, C, which rests upon a tire-pot, P, furnished with the usual grate-bars, door, ash-pit, Ste.

This lire-pot is constructed with double walls, leaving a Vspace between the two, in which water is allowed to circulate, the requisite quantity being furnished by abranch, g, of the supply-pipe m entering at any convenient point. Y

This supply-pipe ym is attached directly to, and communica-tes with the interior of lthe spherical chambers B, by which an equable supply of water may be had in the entire apparatus; amb/toassst in keepingde to enter the lowermostV chamber ot' a series. l

0n tire being applied, the water in these lower chambers will be affected first., and, as the temperaturc increases, the water will expand and rise through the short pipe T, into the chamber above, a constant supply being afforded by the water at the same time descending the long pipe S, producingl a strong cul:- rcnt, thedirection of which is indicated by the arrows in fig. 2. l

As the heat increases, this current will be greatly augmented as it travels from chamber to chamber, .so

that on reaching the uppermost chambers of a series or cluster, the velocity attained by this time will be most rapid and continuous, sufficient in power to'pre- ,vent the settling of any sediment tending to form an incrustation in the boiler, a thing heretofore unaccomplished.

Having thus stated the nature of my invention, its construction and operation,

What I claim, is

The construction, combination, and arrangement of the boiler A, chambers Band passages T, substantially as described. v

EDWARD BOURNE.

witnesses: l t

4JosIAH W. ELLs,

J. B; WHALEY.. 

